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<h2>\sqrt</h2>


<p><tt>\sqrt[root]{arg}</tt></p>


<p>The <tt>\sqrt</tt> command produces the square root

    (radical) symbol with the argument as radicand. The optional

    argument, root, determines what root to produce, i.e. the

    cube root of x+y would be typed as <tt>$\sqrt[3]{x+y}$</tt>.</p>


<p>The radical sign is <a href="ltx-408.html">variable size</a>,

    that is, it is made larger if the radicand is, for example, a

    built-up fraction.</p>


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    See also: <a href="ltx-115.html">Math Formulas</a>,

    <a href="ltx-119.html">Math Miscellany</a>.<br>

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